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authorHans de Goede <hdegoede@redhat.com>2012-05-19 12:57:03 +0200
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-06-11 21:02:54 +0200
commit5daf53a6eb5c54c618c9def388d81c2769fd11a0 (patch)
treeae26108d5971c8e9fb7fcc5d9795b12145a1466b /sound/i2c/other
parent[media] snd_tea575x: Report correct frequency range for EU/US versus JA models (diff)
downloadlinux-5daf53a6eb5c54c618c9def388d81c2769fd11a0.tar.xz
linux-5daf53a6eb5c54c618c9def388d81c2769fd11a0.zip
[media] snd_tea575x: Make the module using snd_tea575x the fops owner
Before this patch the owner field of the /dev/radio# device fops was set to the snd-tea575x-tuner module itself. Meaning that the module which was using it could be rmmod-ed while the device is open, and then BAD things happen. I know, as I found out the hard way :) Note that there is no need to also somehow increase the refcount of the snd-tea575x-tuner module itself, since any drivers using it will have symbolic references to it. Signed-off-by: Hans de Goede <hdegoede@redhat.com> CC: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'sound/i2c/other')
-rw-r--r--sound/i2c/other/tea575x-tuner.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/sound/i2c/other/tea575x-tuner.c b/sound/i2c/other/tea575x-tuner.c
index aa9900dff6e9..ac62ee791a60 100644
--- a/sound/i2c/other/tea575x-tuner.c
+++ b/sound/i2c/other/tea575x-tuner.c
@@ -317,7 +317,6 @@ static int tea575x_s_ctrl(struct v4l2_ctrl *ctrl)
}
static const struct v4l2_file_operations tea575x_fops = {
- .owner = THIS_MODULE,
.unlocked_ioctl = video_ioctl2,
.open = v4l2_fh_open,
.release = v4l2_fh_release,
@@ -337,7 +336,6 @@ static const struct v4l2_ioctl_ops tea575x_ioctl_ops = {
};
static const struct video_device tea575x_radio = {
- .fops = &tea575x_fops,
.ioctl_ops = &tea575x_ioctl_ops,
.release = video_device_release_empty,
};
@@ -349,7 +347,7 @@ static const struct v4l2_ctrl_ops tea575x_ctrl_ops = {
/*
* initialize all the tea575x chips
*/
-int snd_tea575x_init(struct snd_tea575x *tea)
+int snd_tea575x_init(struct snd_tea575x *tea, struct module *owner)
{
int retval;
@@ -374,6 +372,9 @@ int snd_tea575x_init(struct snd_tea575x *tea)
tea->vd.lock = &tea->mutex;
tea->vd.v4l2_dev = tea->v4l2_dev;
tea->vd.ctrl_handler = &tea->ctrl_handler;
+ tea->fops = tea575x_fops;
+ tea->fops.owner = owner;
+ tea->vd.fops = &tea->fops;
set_bit(V4L2_FL_USE_FH_PRIO, &tea->vd.flags);
/* disable hw_freq_seek if we can't use it */
if (tea->cannot_read_data)